html, body {
    padding: 0;
    border: 0;
    margin: 0;
    height: 100%;
}

.container {
    position: relative;
    overflow: hidden;
    margin: auto;
    width: 100%;
    height: 100%;
}

.hello2d {
    cursor: inherit;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999999;
}